Amino acid replacement: S137F.
C19887558T
S137F | ninaE-PA
S137F|FBrf0080181
Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
ninaED1/+ mutant flies exhibit retinal degeneration, with a significant decrease in the number of photoreceptor neurons in adults after 30 days of light exposure; and these flies exhibit impaired positive phototaxis at 12 days after light exposure, but no defects in geotaxis, as compared to wild type.
ERG recordings demonstrate homozygotes and heterozygotes lack the prolonged depolarising afterpotential (PDA). Heterozygotes lose the deep pseudopupil by 21 days of age, homozygotes and transheterozygotes with ninaED2 retain the pseudopupil structure for much longer. Light enhances the rate of retinal degeneration in heterozygotes.
ninaED1 has abnormal neuroanatomy | adult stage phenotype, suppressible by TER94[+]/TER9426-8
ninaED1 has decreased cell number | adult stage phenotype, suppressible by TER94[+]/TER9426-8
ninaED1 has abnormal phototaxis | adult stage phenotype, suppressible by TER94[+]/TER9426-8
ninaED1 has increased cell death phenotype, suppressible by BacA\p35GMR.PH
Arl1GD6768, Scer\GAL4ninaE.PTa, ninaED1 has decreased cell size phenotype
ninaED1 has eye photoreceptor cell phenotype, suppressible by Scer\GAL4ninaE.PTa/Arl1GD6768
ninaED1 has retina phenotype, suppressible by Scer\GAL4ninaE.PTa/Arl1GD6768
ninaED1 has rhabdomere of eye photoreceptor cell phenotype, suppressible by Scer\GAL4ninaE.PTa/Arl1GD6768
ninaED1 has eye photoreceptor cell | adult stage phenotype, suppressible by TER94[+]/TER9426-8
ninaED1 has retina | adult stage phenotype, suppressible by TER94[+]/TER9426-8
ninaED1 has retina phenotype, suppressible by BacA\p35GMR.PH
ninaED1 has endoplasmic reticulum phenotype, non-suppressible by Scer\GAL4ninaE.PTa/Arl1GD6768
Arl1GD6768, Scer\GAL4ninaE.PTa, ninaED1 has eye photoreceptor cell phenotype
Scer\GAL4ninaE.PTa-mediated expression of Arf72AGD6768 greatly reduces abnormal membrane buildup of ninaED1/+ photoreceptor cells, although the endoplasmic reticulum-like membrane accumulation remains.
Scer\GAL4ninaE.PTa-mediated expression of Arf72AGD6768 suppresses the retinal phenotype of ninaED1/+ by delaying the degeneration of rhabdomeres and ommatidial structures.
The overall size of aged ninaED1/+ cells that also express Arf72AGD6768 under the control of Scer\GAL4ninaE.PTa is often greatly reduced.
The heterozygous genotype does not prevent the accumulation of endoplasmic reticulum (ER) in photoreceptor cells present in ninaA2 flies.
Expression of BacA\p35GMR.PH delays the degeneration of the retina in rdgB5 flies, but does not prevent it.